Multiple choice

Consider the following circuit using an ideal OPAMP. The I - V characteristic of the diode is described by the relation I = I0$e^{\left (\frac{V}{V1}-1 \right)}$where VT = 25 mV, I0 = 1$\mu$A and V is the voltage across the diode (taken as positive for forward bias). For an input voltage Vi = - 1 V, the output voltage V0 is

  1. 0 V

  2. 0.1 V

  3. 0.7 V

  4. 1.1 V

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation